CVE-2021-33881
Published Jun 6, 2021
Last updated 3 years ago
Overview
- Description
- On NXP MIFARE Ultralight and NTAG cards, an attacker can interrupt a write operation (aka conduct a "tear off" attack) over RFID to bypass a Monotonic Counter protection mechanism. The impact depends on how the anti tear-off feature is used in specific applications such as public transportation, physical access control, etc.
- Source
- cve@mitre.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 4.2
- Impact score
- 3.6
- Exploitability score
- 0.5
- Vector string
- CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 1.9
- Impact score
- 2.9
- Exploitability score
- 3.4
- Vector string
- AV:L/AC:M/Au:N/C:N/I:P/A:N
Weaknesses
- nvd@nist.gov
- CWE-863
Social media
- Hype score
- Not currently trending
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